JSON Studio

Editor

Paste, type, drop a file, or open one. Click the arrows beside line numbers to fold a section.

Size 0 B Lines 0 Keys – Depth – Root –

Ctrl + Enter formats, Ctrl + F finds, Alt + G jumps to a line. Your last document is kept in this browser only.

Viewer

Click any key to find it in the editor and get its path.

Path $

Query

Pull out values with a path. Use [*] for every item and [?key==value] to filter.

Try:

Convert

Move data between JSON, spreadsheets and YAML config files.

Uses the JSON in the editor. Nested objects become dotted columns like address.city.

Types

Generate model classes from the JSON in the editor. Fields missing from some items are marked optional.

Root name

Compare

Paste a second version to see what was added, removed or changed against the editor.

Second version

The editor above is the original. Arrays are compared position by position.

Clean up any JSON in one paste.

Format, validate, repair, query, compare, convert and generate types. Nothing leaves your browser.

Format, validate, repair, query, compare, convert & generate types

Paste an API response, a config file or a broken log payload. See exactly where it breaks, fix it in a click, then browse it as a tree or a table. Long IDs stay exact, even past 16 digits.

100% free No account needed Your data is never uploaded

100%

Free to use, no catch

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Tools on one page